79725446 has 4 divisors (see below), whose sum is σ = 119588172. Its totient is φ = 39862722.

The previous prime is 79725407. The next prime is 79725449. The reversal of 79725446 is 64452797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64452797 = 17 ⋅3791341.

It is a super-2 number, since 2×79725446² = 12712293479797832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79725397 and 79725406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79725449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19931360 + ... + 19931363.

It is an arithmetic number, because the mean of its divisors is an integer number (29897043).

Almost surely, 2^79725446 is an apocalyptic number.

79725446 is a deficient number, since it is larger than the sum of its proper divisors (39862726).

79725446 is a wasteful number, since it uses less digits than its factorization.

79725446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39862725.

The product of its digits is 423360, while the sum is 44.

The square root of 79725446 is about 8928.9106838404. The cubic root of 79725446 is about 430.3934491513.

The spelling of 79725446 in words is "seventy-nine million, seven hundred twenty-five thousand, four hundred forty-six".